When a rubber rod is rubbed with fur, the rod becomes negatively charged due to the transfer of

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BlackTom AI · Accepted Answer

The question asks about the charging process when a rubber rod is rubbed with fur. This is a classic triboelectric effect scenario, where friction causes transfer of electrons between materials depending on their tendency to gain or lose electrons.

First, consider what happens to the fur and the rubber during rubbing: the fur typically has a weaker hold on its electrons relative to rubber, so electrons transfer from fur to the rubber rod.

Option(s) implied by the provided answer: "electrons to the rod" would mean that electrons move from the fur to the rubber rod, leaving the rod with a negative charge and the fur with a positive charge. This aligns with the common understanding of this setup.

If there were alternative options (not provided here), they might include statements like: electrons moving from rod to fur, protons moving between materials, charge transfer via ions, or no transfer at all. Each of these would be incorrect in this context:

- Electrons from rod to fur would yield a positively charged rod, which contradicts the typical outcome of rubbing rubber with fur where the rod becomes negative.
- Protons do not move between materials during ordinary chemical or triboelectric charging; only electrons are mobile in this process.
- Ions transferring would imply a different mechanism (ionic conduction) that is not the standard triboelectric rubbing case.
- No transfer would imply no charging, which contradicts the observed effect of friction between rubber and fur.

In summary, the established explanation for this setup is that electrons are transferred to the rubber rod, giving it a negative charge after rubbing with fur.

Physics 1 Hon - Bowles - p06/p07 P10.13/10.15 Electrostatics & Circuits MC Test

When a rubber rod is rubbed with fur, the rod becomes negatively charged due to the transfer of

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